County ZIP codes · Ohio · FIPS 39135
Preble County, OH ZIP Codes
Preble County, Ohio has 15 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 11 of the residential ones lie mainly in Preble County and 4 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $62,263 in 45381 (West Alexandria) to $95,652 in 45382 (West Manchester) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Preble County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $64,903 and $74,776.
They carry 15 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 15 residential ZIP codes in Preble County
11 ZIP codes lie mainly in Preble County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 45320 | Eaton | 15,454 | 115 | $65k | $186k | 100% |
| 45311 | Camden | 5,701 | 67 | $69k | $195k | 100% |
| 45381 | West Alexandria | 5,626 | 104 | $62k | $205k | 91% |
| 45338 | Lewisburg | 4,761 | 97 | $75k | $192k | 100% |
| 45347 | New Paris | 4,095 | 74 | $63k | $137k | 74% |
| 45321 | Eldorado | 1,272 | 90 | $69k | $151k | 100% |
| 45382 | West Manchester | 1,154 | 56 | $96k | $200k | 76% |
| 45003 | College Corner | 839 | 55 | $71k | $169k | 81% |
| 45330 | Gratis | 710 | 764 | $77k | $154k | 100% |
| 45378 | Verona | 539 | 1,761 | $73k | $123k | 80% |
| 45070 | West Elkton | 142 | 352 | $50k | $88k | 100% |
Partly in Preble County
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
9 ZIP codes of Preble County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Preble | Elsewhere |
|---|---|---|
| 45042 | 7% | Butler County 92% |
| 45327 | 4% | Montgomery County 94%; Butler County 2% |
| 45304 | 2% | Darke County 98% |
| 45381 | 91% | Montgomery County 9% |
| 45347 | 74% | Darke County 26% |
| 45064 | 48% | Butler County 52% |
| 45382 | 76% | Darke County 24% |
| 45003 | 81% | Butler County 19% |
| 45378 | 80% | Montgomery County 20% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Preble County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Preble County's ZIP codes use 2 prefixes: 450 and 453.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.